I have a CreateUserWizard on .aspx page - fairly straight forward.

When I enter values that I know show cause an error message to appear - they do not show.  For example, enter a username that you know exists already - CreateUserWizard has built-in code to check for that; the user is obviously not created, but no error message is showing.

This confuses my users when nothing happens and no error message.

Any ideas most appreciated!